condition	mean	min	max
0 h after light	15.77205	14.7774	16.7667
4 h after light	18.11	17.4012	18.8188
8 h after light	22.4257	20.2159	24.6355
4 h after dark	36.7469	36.5938	36.9
8 h after dark	31.614150000000002	30.7281	32.5002
12 h after dark	17.12305	14.5243	19.7218